Atriangular flower bed (space for planting flowers) needs a thin metal border all the way around it. the sides are 7 feet, 6 feet, and 9 feet long. how many feet of border should be purchased?
if borders cost $8.75 per yard (and only whole numbers of yards can be purchased), how much would the border cost?

your answer is a

step-by-step explanation:

4*4*4*4=256

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c